Problem-Solving and Data AnalysisEasyChoosing the population an estimate applies to
Problem-Solving and Data Analysis practice question
A researcher surveys a random sample of 400 students at one university and finds that 30% have a part-time job. To which group does this estimate most reliably apply?
- A. Students at that universityCorrect
- B. All students in the country
- C. All adults in the city
- D. All people with part-time jobs
Answer: A. Students at that university
The sample was drawn from that university's students.
Why the other answers are wrong
- B. All students in the country
- Other universities were not sampled.
- C. All adults in the city
- Non-students were not sampled.
- D. All people with part-time jobs
- The sample was not of job-holders.
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